MemoryDual-channel DDR3 SDRAM support:• Up to 4 GB of DDR3 system memory, upgradable to 8 GB using two soDIMM modules5 (for 64-bit OS)• Up to 2 GB of DDR3 system memory, upgradable to 4 GB using two soDIMM modules6 (for 32-bit OS)

MemoryDual-channel DDR3 SDRAM support:• Up to 4 GB of DDR3 system memory, upgradable to 8 GB using two soDIMM modules (for 64-bit OS)• Up to 2 GB of DDR3 system memory, upgradable to 4 GB using two soDIMM modules (for 32-bit OS)

MemoryDual-channel DDR2 SDRAM support:• Up to 4 GB of DDR2 system memory, upgradable to 8 GB using two soDIMM modules (for 64-bit OS)• Up to 2 GB of DDR2 system memory, upgradable to 4 GB using two soDIMM modules (for 32-bit OS)